Motor bearing replacement
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Install a reciprocating machine to drive the motor to replace the bearing bush, and the data will always change when measuring the side gap. For example, the current situation is that the gap on the left side is 0.15mm and the gap on the right side is 0.08mm. Start the turning motor, and then measure the side clearance after stopping. It will become 0.05mm on the left and 0.15mm on the right. How to open the tile opening in this case?
What does "How to open the tile opening in this case?" ”I don’t understand what the poster meant, please give me some more advice!
Your rotor is not in the center position. I suggest you just average the measured values.
Reply 2# hxlhb In this case, how to scrape the tiles to ensure that the size of the side gap is basically the same on both sides?
Reply 3# zhangya* ong can only do this, wait until the operation is started and observe the operation for a period of time.
Reply 5# 565026033 Is it a cylindrical tile or a split tile? Also check the ovality of the motor journal and the straightness of the shaft (whether it is bent).
This post was last edited by lovestory on 2011-9-17 17:47. This hypothetical situation should not happen. Regardless of the impact of centering or shaft shifting, the gap on both sides of the tile will not appear to be larger on one side and smaller on this side. It is normal for the values to change, but the trend should be consistent. The only possibility for this situation to occur is that: The person who scraped the tiles had a problem with the order in which they scraped the tiles! The new tiles directly opened the side gap, and the gap is still a bit large, and the contact at the bottom of the tile has not been scraped yet. This results in the shaft not being positioned horizontally in the tile and swinging horizontally at will. When the cranking stops, the shaft is randomly positioned in a position of the tile, which causes the value to deviate to the left for a while and to the right for a while. Remedies: Disconnect the coupling (required), turn the car slowly (do not allow the shaft to rotate with inertia), check the contact at the bottom of the bearing bush, scrape out the contact at the bottom of the bush, and meet the requirements. Then use a feeler gauge to check the side gaps on both sides of the tile, and scrape until the two sides are basically equal. This situation may not have a very obvious impact on the reciprocating machine because the speed of the reciprocating machine is not high. If placed on a multi-stage pump, it will easily cause horizontal vibration and burning.
Thanks, 7th Floor. I should have peace of mind next time I encounter this kind of situation, haha.